Update package guidelines for .NET Core 3.0

docs/core/build/distribution-packaging.md

@@ -91,30 +91,27 @@ The rest of the version isn't included in the version name. This allows the OS p
 
 The following table shows the recommended packages:
 
-| Name                              | Example            | Use case: Install ...           | Contains         | Dependencies                      | Version            |
-|-----------------------------------|--------------------|---------------------------------|------------------|-----------------------------------|--------------------|
-| dotnet-sdk-[major]                | dotnet-sdk-2       | Latest sdk for runtime major    |                  | dotnet-sdk-[major].[latestminor]  | \<sdk version>     |
-| dotnet-sdk-[major].[minor]        | dotnet-sdk-2.1     | Latest sdk for specific runtime | (3),(4),(13)     | aspnet-runtime-[major].[minor], dotnet-netcoreapp-targeting-pack[major].[minor], dotnet-aspnet-targeting-pack[major].[minor], dotnet-netstandard-targeting-pack-[netst_major].[netstd_minor] | \<sdk version>     |
-| aspnet-runtime-[major].[minor]    | aspnet-runtime-2.1 | Specific ASP.NET Core runtime   | (6),[(7)]        | dotnet-runtime-[major].[minor]    | \<runtime version> |
-| dotnet-runtime-[major].[minor]    | dotnet-runtime-2.1 | Specific runtime                | (5)              | host-fxr:\<runtime version>+      | \<runtime version> |
-| dotnet-host-fxr                   | dotnet-host-fxr    | _dependency_                    | (2)              | host:\<runtime version>+          | \<runtime version> |
-| dotnet-host                       | dotnet-host        | _dependency_                    | (1),(8),(9),(10) |                                   | \<runtime version> |
-| dotnet-targeting-pack-[major].[minor]    |  | _dependency_                    | (12)             |                                   | \<pack version>    |
-| dotnet-aspnet-targeting-pack-[major].[minor]        |  | _dependency_                    | (11)             |                                   | \<pack version>    |
-| dotnet-netstandard-targeting-pack-[netst_major].[netst_minor] || _dependency_            | (15)             |                                   | \<pack version>    |
+| Name                               | Example            | Use case: Install ...           | Contains         | Dependencies                       | Version            |
+|------------------------------------|--------------------|---------------------------------|------------------|------------------------------------|--------------------|
+| dotnet-sdk-[major]                 | dotnet-sdk-2       | Latest sdk for runtime major    |                  | dotnet-sdk-[major].[latestminor]   | \<sdk version>     |
+| dotnet-sdk-[major].[minor]         | dotnet-sdk-2.1     | Latest sdk for specific runtime | (3),(4)          | aspnetcore-runtime-[major].[minor], dotnet-netcoreapp-targeting-pack[major].[minor], dotnet-aspnetcore-targeting-pack[major].[minor], dotnet-netstandard-targeting-pack-[netst_major].[netstd_minor], dotnet-apphost-pack-[major].[minor] | \<sdk version>     |
+| aspnetcore-runtime-[major].[minor] | aspnetcore-runtime-2.1 | Specific ASP.NET Core runtime | (6),[(7)]      | dotnet-runtime-[major].[minor]     | \<runtime version> |
+| dotnet-runtime-[major].[minor]     | dotnet-runtime-2.1 | Specific runtime                | (5)              | dotnet-hostfxr:\<runtime version>+ | \<runtime version> |
+| dotnet-hostfxr                     | dotnet-hostfxr     | _dependency_                    | (2)              | host:\<runtime version>+           | \<runtime version> |
+| dotnet-host                        | dotnet-host        | _dependency_                    | (1),(8),(9),(10) |                                    | \<runtime version> |
+| dotnet-apphost-pack-[major].[minor]|                    | _dependency_                    | (13)             |                                    | \<pack version>    |
+| dotnet-targeting-pack-[major].[minor]     |             | _dependency_                    | (12)             |                                    | \<pack version>    |
+| aspnetcore-targeting-pack-[major].[minor] |             | _dependency_                    | (11)             |                                    | \<pack version>    |
+| netstandard-targeting-pack-[netst_major].[netst_minor] || _dependency_                    | (15)             |                                    | \<pack version>    |
 
 Most distributions require all artifacts to be built from source. This has some impact on the packages:
 
-- The third-party libraries under `shared/Microsoft.AspNetCore.All` can't be easily built from source. So that folder is omitted from the `aspnet-runtime` package.
+- The third-party libraries under `shared/Microsoft.AspNetCore.All` can't be easily built from source. So that folder is omitted from the `aspnetcore-runtime` package.
 
 - The `NuGetFallbackFolder` is populated using binary artifacts from `nuget.org`. It should remain empty.
 
 Multiple `dotnet-sdk` packages may provide the same files for the `NuGetFallbackFolder`. To avoid issues with the package manager, these files should be identical (checksum, modification date, and so on).
 
-### Preview versions
-
-Package maintainers may decide to provide preview versions of the shared framework and SDK. Preview releases may be provided using the `dotnet-sdk-[major].[minor]`, `aspnet-runtime-[major].[minor]`, or `dotnet-runtime-[major].[minor]` packages. For preview releases, the package version major must be set to zero. This way, the final release is installed as an upgrade of the package.
-
 ## Building packages
 
 The [dotnet/source-build](https://github.com/dotnet/source-build) repository provides instructions on how to build a source tarball of the .NET Core SDK and all its components. The output of the source-build repository matches the layout described in the first section of this article.